Removal of copper (II) from aqueous solution on NaX zeolite: effect of particle size

Quimica nova

Machado, Nadia R. C. Fernandes¹  Pergher, Sibele B. C.²  Detoni, Chaline²  Caovilla, Marcela² 

[1] Universidade Estadual de Maringá, Maringá;Universidade Regional Integrada do Alto Uruguai e das Missões, Erechim

关键词: NaX zeolite;    particle size;    metal adsorption.;   

DOI  :  10.1590/S0100-40422005000300006

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The present studyconsists in evaluating the NaX zeolite efficiency in removing Cu2+from aqueous solutions, for future use of NaX in removing metals from wastewaters.The experiments were performed in batch systems (with shaking and continousstirring) and for different time intervals (1 to 24 h). Three particle sizeswere employed: < 850 µm, 850 µm – 1 mm and 3 mm. Ithas been concluded that it is possible to employ the NaX zeolite for metal removaland the particle size plays an important role in the adsorption process. Specifically,NaX zeolites of smaller particle size achieved the maximum adsorption capacityof 152.36 mg of Cu2+/g of zeolite at pH = 4.5.

【 授权许可】

CC BY